org.sosy_lab.cpachecker.cfa.model.MultiEdge.java Source code

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Here is the source code for org.sosy_lab.cpachecker.cfa.model.MultiEdge.java

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/*
 *  CPAchecker is a tool for configurable software verification.
 *  This file is part of CPAchecker.
 *
 *  Copyright (C) 2007-2014  Dirk Beyer
 *  All rights reserved.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *
 *  CPAchecker web page:
 *    http://cpachecker.sosy-lab.org
 */
package org.sosy_lab.cpachecker.cfa.model;

import java.util.Iterator;
import java.util.List;

import org.sosy_lab.cpachecker.cfa.ast.FileLocation;

import com.google.common.base.Function;
import com.google.common.base.Joiner;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;

/**
 * A single edge which represents a sequence of several other simple edges of
 * the types
 * BlankEdge
 * DeclarationEdge
 * StatementEdge
 * ReturnStatementEdge
 */
public class MultiEdge extends AbstractCFAEdge implements Iterable<CFAEdge> {

    private final ImmutableList<CFAEdge> edges;

    public MultiEdge(CFANode pPredecessor, CFANode pSuccessor, List<CFAEdge> pEdges) {
        super("", FileLocation.merge(Lists.transform(pEdges, new Function<CFAEdge, FileLocation>() {
            @Override
            public FileLocation apply(CFAEdge pInput) {
                return pInput.getFileLocation();
            }
        })), pPredecessor, pSuccessor);
        edges = ImmutableList.copyOf(pEdges);
    }

    public ImmutableList<CFAEdge> getEdges() {
        return edges;
    }

    @Override
    public Iterator<CFAEdge> iterator() {
        return edges.iterator();
    }

    @Override
    public CFAEdgeType getEdgeType() {
        return CFAEdgeType.MultiEdge;
    }

    @Override
    public final String getRawStatement() {
        return Joiner.on('\n').join(Lists.transform(edges, new Function<CFAEdge, String>() {

            @Override
            public String apply(CFAEdge pInput) {
                return pInput.getRawStatement();
            }
        }));
    }

    @Override
    public String getCode() {
        return Joiner.on('\n').join(Lists.transform(edges, new Function<CFAEdge, String>() {

            @Override
            public String apply(CFAEdge pInput) {
                return pInput.getCode();
            }
        }));
    }

    @Override
    public String getDescription() {
        return Joiner.on('\n').join(Lists.transform(edges, new Function<CFAEdge, String>() {

            @Override
            public String apply(CFAEdge pInput) {
                return pInput.getDescription();
            }
        }));
    }

    @Override
    public String toString() {
        return Joiner.on('\n').join(edges);
    }

    @Override
    public boolean equals(Object pOther) {
        if (!super.equals(pOther))
            return false;

        if (!(pOther instanceof MultiEdge)) {
            return false;
        }
        MultiEdge otherEdge = (MultiEdge) pOther;
        return edges.equals(otherEdge.edges);
    }

    @Override
    public int hashCode() {
        return edges.hashCode();
    }
}